Title :
Impact of filtering on RZ-DPSK reception
Author :
Winzer, Peter J. ; Chandrasekhar, S. ; Kim, Hoon
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
We discuss the influence of optical and electrical filtering on the performance of beat-noise limited balanced and single-ended direct detection of return-to-zero differential phase-shift keying (DPSK). Our simulations, supported by 40-Gb/s measurements, show that balanced DPSK detection outperforms both its single-ended equivalent and ON-OFF keying by /spl sim/2.7 dB, with higher gains at narrower optical filter bandwidths.
Keywords :
differential phase shift keying; error statistics; filtering theory; optical receivers; optical signal detection; 40 Gbit/s; RZ-DPSK reception; balanced DPSK detection; beat-noise limited balanced detection; dual-drive Mach-Zehnder modulator; electrical filtering; higher gains; narrower optical filter bandwidths; on-off keying; optical filtering; performance; return-to-zero differential phase-shift keying; simulations; single-ended direct detection; single-ended equivalent; Differential quadrature phase shift keying; Fiber nonlinear optics; Filtering; Intersymbol interference; Nonlinear optics; Optical distortion; Optical filters; Optical interferometry; Optical receivers; Optical sensors;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.811140
